Saw.



PATENTED MAY 30, 1905.

F. A. WUEST. SAW.

APPLICATION FILED 1336.16, 1904.

UNrrnn STATES E'atented May 30, 1905.

PATENT Urricn.

SAW.

SPECIFICATION forming part of Letters Patent No. 790,947, dated May 30,1905. Application filed December 15, 1904. Serial No. 286,978.

To all whom it may concern:

Be it known that I, FREDERICK A. WUEST, a citizen of the United States,residing at Lawrenceburg,in the county of Dearborn and State of Indiana,have invented certain new and useful Improvements in Saws; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in saws, and more particularlybutchers saws.

The object of my invention is to provide a simple, durable, andeflicient connection for the rear end or heel of the blade of. abutchers saw, which may be easily manipulated to vary the tension of thesaw-blade and which will be of a compact construction and have but fewrecesses, cavities, and corners in which dirt or meat may lodge.

l/Vith the above and other objects in view the invention consists ofcertain novel features of construction, combination, and arrangement ofparts, as will be more fully described, and particularly pointed out inthe appended claim.

In the accompanying drawings, Figure 1 is a side elevation of a portionof a butchers saw constructed in accordance with my invention. Fig. 2 isa transverse sectional view through the blade looking toward the heel.Fig. 3 is an end elevation. Fig. 4c is a vertical longitudinal sectionalView. Fig. 5 is a horizontal sectional view, and Fig. 6 is a perspectiveview of the clip or clasp. Fig. 7 is a transverse sectional view takenon the plane indicated by the line a a of Fig. 1.

Referring to the drawings by numerals, 1 denotes the rear end of theusual U-shaped frame of a butchers saw, upon which is secured the usualhandle 2.

3 denotes a saw-blade, and 4; denotes my improved detachable andadjustable connection for securing the blade 3 to the frame 1.

The frame 1 has its end formed with a longitudinal slot 5, adapted toreceive the sawblade, and with a transversely-extending recess or slot6, which intersects the slot 5, as clearly shown in Figs. 4 and 5 of thedrawings. The recess 6 is adapted to receive the bifurcated inner end 7of an adjusting-screw 8, which extends longitudinally and rearwardly inline with the center of the sawblade, which has its end pivotallymounted in said slotted portion 7 of the screw by means of a rivet orpivot-pin 9. The screw 8 extends through an opening 10, formed in a clipor clasp 11, which is substantially U-shaped in form and has its twoarms or wings 12 adapted to engage the opposite faces of the lower endof the frame 1 and cover the recess 6, formed therein, and the screw 8.This clip 11 fits the frame 1 snugly and has its edges beveled orrounded, as clearly shown in Fig. 6 of the drawings. It will be seenthat by providing this clip and constructing it as shown there will befew places in which dirt, meat, blood, or the like may lodge, and hencethe connection may be readily cleaned. The end of the saw-blade 3 hasits corners cut away, as shown at 13, and the end of the clip 11 inwhich the opening 10 is formed has its inner face correspondingly cutaway, as at 14. Upon the extreme outer end of the screw 8 is anadjusting-nut 15, which is formed with a single wing or finger-piece 16,by means of which it may be readily rotated. This nut 15 issubstantially conical in form, its edges being rounded, as shown, andthe wing 16 has a curved portion 17, which permits it to clear the rearend of the clip 11 and at the same time lie close to the frame 1 whenthe parts are in their adjusted position, as shown in Fig. 3 of thedrawings. When the parts are in this position, it will be seen that saidwing alines or registers with the saw-frame and lies close to the same.

The construction, operation, and advantages of my invention will bereadily under stood fromthe foregoing description, taken in connectionwith the accompanying drawings. It will be seen that the parts may bereadily detached for the purpose of cleaning and that they may bereadily adjusted to vary the tension or strain upon the saw-blade.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

I0 sides of said frame and covering said recess and that portion of thescrew therein, and a nut on the end of said screw engaging said clip;

In testimony whereof I have hereunto se my hand in presence of twosubscribing wit- I 5 nesses.

FREDERICK A. WUEST. Witnesses:

CHARLES OHARA, JOHN B. GARNIER.

